rust/SOURCES/rust-pr70591-ensure-llvm-is-in-the-link-path.patch

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commit 6067315d58ff3d49b305ae3c99810656856c8e21
Author: Josh Stone <jistone@redhat.com>
Date: Mon Mar 30 14:03:39 2020 -0700
Ensure LLVM is in the link path for "fulldeps" tests
This is a follow-up to #70123, which added `llvm-config --libdir` to the
`LIBRARY_PATH` for rustc tools. We need the same for "run-make-fulldeps"
and "ui-fulldeps" tests which depend on compiler libraries, implicitly
needing to link to `-lLLVM` as well.
diff --git a/src/bootstrap/test.rs b/src/bootstrap/test.rs
index 5b946b05735d..2499856235f1 100644
--- a/src/bootstrap/test.rs
+++ b/src/bootstrap/test.rs
@@ -21,7 +21,7 @@ use crate::flags::Subcommand;
use crate::native;
use crate::tool::{self, SourceType, Tool};
use crate::toolstate::ToolState;
-use crate::util::{self, dylib_path, dylib_path_var};
+use crate::util::{self, add_link_lib_path, dylib_path, dylib_path_var};
use crate::Crate as CargoCrate;
use crate::{envify, DocTests, GitRepo, Mode};
@@ -1178,6 +1178,15 @@ impl Step for Compiletest {
cmd.arg("--system-llvm");
}
+ // Tests that use compiler libraries may inherit the `-lLLVM` link
+ // requirement, but the `-L` library path is not propagated across
+ // separate compilations. We can add LLVM's library path to the
+ // platform-specific environment variable as a workaround.
+ if !builder.config.dry_run && suite.ends_with("fulldeps") {
+ let llvm_libdir = output(Command::new(&llvm_config).arg("--libdir"));
+ add_link_lib_path(vec![llvm_libdir.trim().into()], &mut cmd);
+ }
+
// Only pass correct values for these flags for the `run-make` suite as it
// requires that a C++ compiler was configured which isn't always the case.
if !builder.config.dry_run && suite == "run-make-fulldeps" {